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L3092N Datasheet

  • L3092N

  • SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECO...

  • 32頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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L3000N - L3092
It is possible to do it because :
When the CS = + 5V the output pins (ONHK,
GDK) are in high impedance condition (> 100K鈩?.
The signals present at the input pins are not
transfered into the SLIC.
When the CS = 0V the output pins change in
function of the values of the line current (I
line
) and
the longitudinal current (I
GDK
). The operating
status of the SLIC are set by the voltage applied
to the input pins.
The rising edge of the CS signal latches the sig-
nal applied to the input pins. The status of the
SLIC will not change until the CS signal will be
again equal to zero.
See timings fig 7 & 8.
An additional input pin MR (Master Reset) can be
useful during the system start up phase or in
emergency condition.
In fact when this pin is set to 鈥?鈥?the SLIC will be
set in POWER DOWN MODE. This pin has an in-
ternal pull-up resistor of about 200K鈩?/div>
EXTERNAL COMPONENTS LIST
To set up the SLIC kit into operation, the following
parameters have to be defined :
- The DC feeding resistance RFS, defined as
the resistance of each side of the tradi-
tional feeding system (most common value
for RFS are 200, 400 or 500).
- The AC input/output SLIC impedance at line
terminals, ZML, to which the return loss
measurement is refered. It can be real
(typically 600鈩? or complex.
- The equivalent AC impedance of the line
Zline used for evaluation of the trans-hy-
brid loss (2/4 wire conversion). It is usually
a complex impedance.
- The frequency of the ringing signal Fr (SLIC
can work with this frequency ranging from
16 to 68Hz).
- The value of the two resistors RP in series
with the line terminals ; main purpose of
the a.m. resistors is to allow primary pro-
tection to fire..
With these assumptions the following compo-
nents list is defined :
Figure 7:
Typical Application Circuit
L3000N
13/32

L3092N相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Subscriber Line Controller
    ETC
  • 英文版
    SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECO...
    STMICROELECTRONICS
  • 英文版
    SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECO...
    STMICROELECTRON...
  • 英文版
    Subscriber Line Controller
    ETC
  • 英文版
    SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECO...
    STMICROELECTRONICS
  • 英文版
    SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECO...
    STMICROELECTRON...
  • 英文版
    SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECO...
    STMICROELECTRONICS
  • 英文版
    SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECO...
    STMICROELECTRON...
  • 英文版
    Telecommunication IC
    ETC
  • 英文版
    Telecomm Interface， Other/Special/Misc
    ETC
  • 英文版
    Telecommunication IC
    ETC
  • 英文版
    Telecomm Interface， Other/Special/Misc
    ETC

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